-ic c-- ccc ccg cci ccn cco ccs cct cgc cgg cgi cgn cgo cgs cgt ci- cic cig cii cin cio cis cit cn- cnc cng cni cnn cno cns cnt co- coc cog coi con coo cos cot csc csg csi csn cso css cst ctc ctg cti ctn cto cts ctt gcc gcg gci gcn gco gcs gct ggc ggg ggi ggn ggo ggs ggt gic gig gii gin gio gis git gnc gni gnn gno gns gnt goc gog goi gon goo gos got gsc gsg gsi gsn gso gss gst gtc gtg gti gtn gto gts gtt icc icg ici icn ico ics ict igc igg igi ign igo igs igt iic iii iin iio iis iit in- inc ing ini inn ino ins int io- ioc iog ioi ion ioo ios iot is- isc isg isi isn iso iss ist itc itg iti itn ito its itt n-i ncc ncg nci ncn nco ncs nct ngc ngg ngi ngn ngo ngs ngt nic nig nii nin nio nis nit nnc nng nni nnn nno nns nnt no- noc nog noi non noo nos not nsc nsg nsi nsn nso nss nst ntc ntg nti ntn nto nts ntt o-i oc- occ ocg oci ocn oco ocs oct ogc ogg ogi ogn ogo ogs ogt oic oii oin oio ois oit on- onc ong oni onn ono ons ont oo- ooc oog ooi oon ooo oos oot os- osc osg osi osn oso oss ost ot- otc otg oti otn oto ots ott scc scg sci scn sco scs sct sgc sgg sgi sgn sgo sgs sgt sic sig sii sin sio sis sit snc sng sni snn sno sns snt soc sog soi son soo sos sot ss- ssc ssg ssi ssn sso sss sst stc stg sti stn sto sts stt tcc tcg tci tcn tco tcs tct tgc tgg tgi tgn tgo tgs tgt tic tig tii tin tio tis tit tnc tng tni tnn tno tns tnt to- toc tog toi ton too tos tot tsc tsg tsi tsn tso tss tst ttc ttg tti ttn tto tts ttt